Reversible pulley



Patented 960.11920.

A. BRANTEGAN'.

REVERSIBLE PULLEY.

APPLICATION FILED IAN. I9, 1920.

. Y Be it knownthat I, ARTHUR UNITED STATES" PATENT OFFICE.

'A l ARTHUR BRANTEGAlN', 0F CHICAGO, ILLINOIS;`

REVERSIBLE `PU'LLEIVY. y n

VSpecification of Letters Patent.

lPalmas@ Dee. 7, 1920.

i Application mea January 19,1920'. serian .Na 352,360.

To all whom it may concern.'

BRANTEGAN, a oitizenof the United States, residing at Chicago, inthe county of Cool: and State of Illinois, have invented certain neit7V and useful Improvements in Reversible Pulleys, of which the following is a specification. 'Y

T he invention relatesito improvements in reversible pulleys.

j One of the objectsof the invention is to provide. apulley which may be connected with a shaft, or mounted thereomwhich is v I vrotating constantlyl ina given direction, and

.having connectingmechanism which i will gear members.

cause the ypulley to rotate with the shaft or in contrary d irection, according tothe manner of connection. l

'v Another object is to provide a reversible pulley having a"reversible gear mechanism which will rotate with the pulleyuwhen the Vpulley is driven in ja. given direction without producing any relative movement ofthe Another object is to place allofl the pul- 'leyV reversing mechanism within the contines .of the pulley. s l

Other, further and more specific'objects ofthe invention will become readily apparent to persons skilledin the art, from a, consideration ofthe following description when. taken inf conjunction with the drawings, f,

' ',Figure 1 isa central, Yaxial view of the,"v

deviceQpg;

changing gears are driving the pulley.

Fig. 3 is a transverse section taken on line 3-3 of`Fig..1.

In allthe views the samereference characters are' employed to indicate` similar parts.

.The ydriven pulley 5 is loosely rotatable upon the driving'shaft 6, but when the vclutch member 7 is moved axially toward the pulley, it makes engagement withv the clutch member 8 and directly drives the pulley in the same direction that'the shaft is rotated. A

Secured to the web 9, of the pulley 5,v asv bv bolts or screws 11, is a bevel gear member 1C. A disk 12 is rotatable upon the hub 13 of the pulley and carries at proper intervals a plurality ofbeveled gear pinions 14, 'normally mesh with the gear 10. vLoose Fig. 2gis a side viewed-of oneofthe gear..l` members and brake band 'touhold it-fied to the station'ary ;part'when the j direction Y,

onjithe hub 13 isa member l5, whichiis also inzmesh with the pinionsll, being held Ain place by a collar 16.` The gear member 15 is provided with a clutch member 17 for `,connection with an axially movable clutch ,member 18. f f

A shiftingl lever 19 moves-the'clutch mem- 'ber 7 and a shifting leverl 20 moves the clutch member 18.

e A It is desirable that these two levers be' moved together, so that when .the members 17'and 1'8 arel connected tfiggethentheV members 7 and 8 are disconnected and when the members 7 and`8 are connected together, `'the members 17 and 18 are Vdisconnected 'by ythe same mechanism.

The ylevers 19'and 20 are` connected together bya rod'21 to accomplish'this result. `The' shifting leversY have partsl engaging the circumferential grooves, 22 and23 in the respective. clutch members 7. vand 18..,V The pulley.Y

hubv l13 is confined on the* shaft 6 between thelvcollars 16 and 23; the'fpins 24'hol'ding`w them ,fromV being ,shifted agrially on the 'shaft."

'A brake' bandesrrounds tile'm'mbr or fdisk 512 and is held in `contactt-herewith by a Ytightening .mechanism shown more clearly iinFig. 2xconsistingfof themember 26 pivfoted to acasting 27f`th`at is secured to' one `end of the lbrake band 25, as at 28, thevpivot aabein'g 4the 'poinbjupon which the parc 27 rotates'. `The"'part"`26 is providedV with a stud 3 0 which proj ectsinto an inclined slot 32"-511` the l'fitting 31',whichfislconnected to the Voth'er end of 'thefbrake `band,"as at 33.

ANo'w; when lthe' .fitting` 2,6 is rotated, as byV the farm "34, itfdr'aws] the :'twoends'of 'the Y brake' baid'together'which tightenslontthe disk 12, and holds it in stationary position.

The inner end of the arm'34 is connected to the shifting lever 20, as at 35, so that when "pinion 14 and drive the pulley 5 in the opposite direction to the gear member 10, in a y,

manner clearly understood,` from a consideration of the structure shown. When the pulley is driven through the train ofV gears;

just'described, the direction of rotation Will c be opposite to that at which it is driven di-V rectly by the shaft. yNovv that the pulley 5I may be driven in the opposite direction, the` samev direction of the shaft, it is only necessary to move the levers 19 and 2O to the left which will disconnectr the lclutclfmembers 1( and 18 and connect the clutch members 7 and 8; the key/"37 beingthe means of connecting'the clutch member? vWith the shaft,

- `Will causethe pulley to be directlyjdriven vat the samespeed as Ythe shaft in the samev direction that the' shaftv is rotatin and vwill cause the gear members to bebo'dily rotated Without any relative Vmovement 'between the of alternately members.

Any means for tightening the 'brakeband andtoholdtit stat1onary,jother than that 's hov'vn Vmay be employed forfthel purpose.

And; lforthermore, any'y sort :of clutchv other vthan VVshown may be I used l'for the purpose connectingthe 'clutch mein-l bersltogether. 'i

`Althoiighfin`thejforegoinggg description of the structl'lre shown in the drawing it has beenassumed Vthat the shaft drives the pulley in one 'or theother'direction, it' is ob-V l t vious that the lpovverrnay belappliedto the vrangement'and disposition of the partswithin the'scope of the appended claims.

Patentli'sff' i f1. reversible pulley comprising-'azshaft H aving'described my invention VWhat/: I

desire to secure by Letters claim as new and Vupon Vwhich" it isf-normally rotatable; a

j l clutch on the/'said shaft to drive the'pulley i Vin :like direction; another .clutch onf said -shaft; a train",of gears f orconnecting'the pulley to the shaft, through rthe latter clutch, including a rotatable element; means to hold and alternately release saidelement, land `Vmeans for alternately opening one clutch and closing the other to change the direction of rotation of said pulley.

2. l-n a reversible pulley the combination l of a shaft upon which it is normally rota- Y i table; a vclutch on said shaft to .drive the pulley in like direction; another'clutch on the sha-ft; a train of gearsfor connecting the pulley to the shaft through theflatter clutch, including a rotatable Velementfto be held when the gearv drives the 'pulley andY means to shift the clutch members andref lease said rotatable element. l l

3. Avreversible pulley having in combination a shaft upon which it is normally rotatable; a clutch on said vshaft to drive the :pulley in one direction; another Clutchv on said shaft; la train of gears forV connecting Y the'y pulley vto the shaft through the vlat-ter 'clutch Vto'drive the pulley in opposite direction,including a rotatable elementto be heldf when the gear drives the pulley; a brake band to hold the rotatable element and means to close `one clutch and vopen the otherand to ti hten and loosen the brake band; respective y.-' A' "Y `4. A Areversible"pulley having. ashaft "upon lwhich it is normallyl freely; rotatable; a ,clutch coperating withl said shaftf'a'nd said pulley to driveA the shaftfin thesamefdirec- 'Y tion as the pulley, a -second clutch;l a' trainVY feol of gears v including a rotatable element controlled bysaid second 'clutch for interconjnectingl said pulley an'dfshaft to drive *the shaft in Ythe vreverse direction fromv the pul-v ley, meansrto Vholdsaid rotatable element -w'hile thefshaftissodriven, and means for alternately openingone clutch` and-closing f 'the other to-ch'angeV the directionfo'f relav tive rotation between pulley and sha'ft ."v

In j testimony; whereof" yI hereunto sub-zv I scribefmy` name.

-ARTLHRBRANTEGN- 

